This tubes has not been tested.
This is because there is no device to test these Tubes now.
But long ago they worked well.

Identical to RENS1294 = NVS43 = WE24 = LAS324 = 1294_TKD = 5-447 = HP4106 = E447 = H4129D = RS4347

Similar Tubes

Normally replaceable-slightly different:

  DH204 ; S434N ; T4700 ; TM-C3G-PV ; VH2 ; W519

Other class quality (otherwise equal):

  KL70701S

Other characteristic (electr. data):

  AF2

Heater different:

  RENS1894

Other base:

  NVS43_B5+1

First year 1933 Tube leaflet collection E.Erb Analysis by original leaflets